Title:
Ventilating device
United States Patent 1358193

Inventors:
Fulton, Weston M.
Publication Date:
11/09/1920
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Assignee:
FULTON CO
Primary Class:
236/49.500
Other Classes:
312/101, 137/601.090, 454/219, 137/357, 49/2, 312/213
International Classes:
E06B7/03; E06B7/02